Hanger for pipes



Jan. 6, 1931. A. G. SIEBENLIST 7,

HANGER FOR PIPES Filed Nov. 10, 1927 A TTORN E Y5.

Patented Jan. 6, 1931 NT orries ANTHONYG; sIn EivIiIsr, or ILWA KEE, WISCONSIN, Assienon, BY MESNE ASSIGN- MENTS, TO .MILCOR STEEL COMPANY, OF MILW'AUKEE, XVISCONSIN, A CORPORATION or DELAWARE This invention relates to an improvement in pipe hangers or pipe supports which are particularly welladapted for use in supportmanner usually by means of hanger. strips.

It is necessary for the manufacturer to suitably attach the'hanger strips to the outer walls of the sections to prevent deformation 7 thereof and to preclude'such modification or distortion of the pipe structure as would'impair its strength or its heat insulating properties. It isextremely undesirable to have the strips projecting beyond the pipe during handling and shipping thereof and yet when the pipe is installed the hanger strips must project beyond the pipe to overlie the studcling to which they are secured. It has been expensive to manufacture.

One of the objects of the invention is'toflprovide a hanger for" pipes of the type wherein a hanger strip is slidably interfitted with proposed to slidably interconnect hanger strips with the pipe byeXt-ending portions of the strips through slots in the pipebut sueh expedients have been unsatisfactory for a numberofieasons. For example, where the hanger strips have been interconnected'with the pipe to prevent their accidental displacement they are permanently interlocked there- "with and adjustment of the stripsis more or less difficult; -Again, wherefree adjustment ishad the strips are notheld against accia slotted wall (If thepipe and which so interconnects the hanger strip and pipe that the hanger strip is freely adjustable and yet any possibility'of accidental displacement of the hanger strips is effectively precluded. The

hanger strips are held flush up against the pipe and substantially within the confines thereof during handling and shipping and yet the hanger strips maybe conveniently and rather HANGER FOR 'rirns .Applicati on filed November 10,1927. Serial n'o.'232,2io.

adjusted to project beyond the pipe and to overlap the studding when the pipe is set up.

pipe Without cutting away or weakening the strip'in any way and without requiring any modification of the pipe structure beyond the slotting of the outer Wall thereof. Other objects and advantages reside incertain novel features of the construct-ion, ar-

rangement and combination of parts which will he hereinafter more fully described and particularly pointed out in the appended claimsyreferen'ce being had to the accompan y'ing drawings forming apart of this specification, and in which Figure 1 is av fragmei'itary perspective view illustrating how the hanger strips are positioned to support a section of hot air piping iiomthe studdingof a building; I

Figure 2 is afragmentary perspective view showing a portion of a pipe section with the hanger strips organized" therewith and in retracted positionaswhen-handling or ship:

Figure3 is a detail perspective view of one of the hanger'strips;* dental displacement. Finally, the known constructions have been diflicult of FigureQ; and. V a I Figure 61S a fragmentary sectional view illustrating certaiirof the movements through which. hanger strip is carried to interlock I it with or disengage it from a pipe section.--

Referring to the drawings, the numeral 1 des'ignates generally a po'rtion'of a hot air 3 pipe wliich'has an inner wall 2 and an outer wall 3. The pipe 1 is of any suitable or-con- 'vjentional construction'and is usually nade up of sections which. have their ends inter- 'fittedor otherwise suitably connected. Usui inner surface of the outer wall.

ally the pipe is extended through the walls of the building and is positioned betweenthe studs S and S of such walls.

The present invention proposes the provision of hangers H and H of the type which are slidably interconnected with the pipe 1 and secured to the studs S and S.

The hangers H and H are of identical construction so that a single description will apply to both.

As shown in the drawing,'each hanger consists of an elongated strip of metal, the body portion 5 of which is slidably extended through a slot 3 provided in the outer wall 3. Adjacent its inner end the strip making up the hanger is offset by means of a reverse bend 6 and beyond the reverse bend 6 a guide shoe 7 is provided. The guide shoe 7 terminates in a guiding flange 8.

The hanger strip may be assembled with the pipe by inserting the flange 8 through a slot 3' as shown in full lines in Figure 6. The strip is then rotated in a clockwise direction as viewed in Figure 6 and as it rotated the guide shoe is slipped in through the slot 3 to bring the hanger strip to the position shown in dotted lines in Figure 6. This first brings the bend 9 of the offset or reverse bend into proximity to the outside of the slot 3 and. then by pressing the strip inwardly and to the right, as viewed in Figure 6, the hanger strip may be first brought into the position shown in dotted lines in Figure 6 and finally into the full line' position shown in Figure 4. To move the hanger strip into its retracted position (see Figure 2) the strip must be pressed down adjacent the bend 10 so as to force this bend in through the slot and into the position shown in Figure 5. The metal of the pipe, especially in the region of the slots 3; has suflicient resil iency to permit the edges of the slots 3 to oifset as much as is necessary for this operation. The slots 3 are also of sufficient extent to provide for convenient assembly and disassembly of the hanger strips with the pipe.

In adjusting a hanger strip relative to the pipe it moves under the influence of the guiding shoe and guiding flange 8 and when the bend 10 passes into the space between the walls of the pipe, the body 5 of the hanger strip is spaced from the inner surface of the outer wall 3 by the action of the flange 8, to preclude the development of excessive friction. The flange 8 is of a height equal to or greater than the distance that the shoe .7 is offset from thebody 5. Preferably the flange 8 has the greater dimension to position its edge just above the surface of the body 5. During all sliding adjustments of any hanger strip its guiding shoe 7 presents a surface of relatively large area which flatly engages the inner surface of the inner wall 2 of the pipe while the edge of the flange 8 engages the The frictional engagement of these parts, especially when the hanger strips are retracted, ample to maintain them against accidental displacement and yet excessive friction is not developed. and the strips may be freely adjusted grasping the outer ends of the strips and pulling them outwardly.

The outer ends of the strips may be bent or fashioned to provide brads or driven fasteners '15 which may be driven into the studding. Nail receiving openings 16 may also he formed in the strips adjacent their outer ends to receive nails N and N which secure the strips to the studding to suspend the pipe thereon. \Vhen the strips are pulled out as far as they may be and are in position to snspend the pipe on the studding each bend 10 receives one edge of its slot 3 to positively limit the outward movement of the hanger strip. The full length of the strip thus acts to limit the outward movement of the strip. The pull which is exerted upon the strip when it is supporting the pipe tends to and does maintain the interlock between the bend l0 and the engaged edge of the slot 3. To disassemble a strip from the pipe it is necessary first to pull it out as far as it maybe pulled and then to move it inwardly and away from the pipe and afterwards to pull it out through the slot and rotate it from the dotted line position shown in Figure 6 to the full line position in the same figure.

,Hanger strips constructed in accordance with the present invention are extremely simple and comparatively inexpensive to manufacture and they have a number of distinct advantages. In the first place, they utilize the full strength of the strip in effecting the interlock between the strip and the pipe. Secondly. they may be assembled with or disassembled from the pipe at any time and finally while precluding accidental displacement of the strips they leave the strips free for manual adjustment and yet provide a positive unfailing interlock when the pipe is set up.

The invention claimed 1s: 1. In combination with a double *all pipe lniving a peripheral opening in its outer wall,

a hanger strip extending through the opening and having its inner end formed with a guiding shoe of substantial arcaflatly engaging the inner wall of the pipe. there being an olfset between the guiding shoe and the body of the strip adapted to interlock with an edge of the slot whenthe strip is pulled outwardly as far as it may be.

2. In combination with a double wall pipe having a peripheral opening in its outer wall, a hanger strip including a body port-ion slidably exten ded through the opening, said hanger strip having a guiding shoe at one end and being formed with a reverse band intermediate the body portion and the guiding shoe, said reverse bend offsetting the guiding shoe to engage the inner wall of the pipe, and also being adapted to positively interlock with an edge of the slot.

3. In combination with a'double wall pipe having a peripheral openingin its outer wall, a hanger strip including a body portion slidahly extended through the opening, said hanger strip having a guiding shoe at one end and being'formed with a reverse bend intermediate the body portion and the guiding shoe, said reverse bend offsetting the guiding shoe to engage the inner Wall of the pipe,and also being adapted to positively interlock with an edge of the slot, said guiding shoe terminating in a flange engageable with the outer wall of the pipe.

4. A hanger for use with double wall pipe having a slot in its outer wall and comprising a hanger strip having a flanged guide shoe at one end and also having an inclined connecting portion between the flanged guide shoe and the body'of the strip to offset the guide shoe and to afford a releasable interlook between the hanger strip and the pipe.

5. A hanger for use with double wall pipe having a slot in its outer wall and comprising a hanger strip slidably extended through the slot and a guide shoe of relatively broad area formed at the inner end of the strip and flatly engageable with the inner Wall of the pipe. i 6. A hanger for use with double wall pipe having a slot in its outer wall and comprising a hanger strip slidably extended through the slot and a guide shoe of relatively broad area formed at the inner end of the strip and flatly engageableavith the inner wall of the pipe, said hanger stripalso havinga flange having its edge contacting with the inner surface of the outer wall of the pipe.

In witness whereof, I hereto aflix my signature.

ANTHONY e. SIEBENLIST. 

